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TI-2021-13506 Aliases CVE-2021-34477

Visual Studio Code .NET Runtime Elevation of Privilege Vulnerability

Priority LOW 35CWE-269Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from Microsoft.

Summary

Visual Studio Code .NET Runtime Elevation of Privilege Vulnerability

Why it matters now

EPSS 0.00569 47th percentileScored 2026-11-07
Fix Fixed .NET Education Bundle SDK Install Tool (Microsoft): 1.2.0.NET Install Tool for Extension Authors (Microsoft): 0.7.0

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
Microsoft.NET Education Bundle SDK Install Tool0.0.0 to before 1.2.01.2.0Patch availableCNA
Microsoft.NET Install Tool for Extension Authors1.0.0 to before 0.7.00.7.0Patch availableCNA
  • .NET Education Bundle SDK Install Tool VendorMicrosoft Affected 0.0.0 to before 1.2.0 Fixed in 1.2.0 Patch available CNA
  • .NET Install Tool for Extension Authors VendorMicrosoft Affected 1.0.0 to before 0.7.0 Fixed in 0.7.0 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:.net_education_bundle_sdk_install_tool:*:*:*:*:*:visual_studio_code:*:*0.6.0 to before 0.7.0VulnerableMicrosoft
cpe:2.3:a:microsoft:.net_install_tool_for_extension_authors:*:*:*:*:*:visual_studio_code:*:*1.1.0 to before 1.2.0VulnerableMicrosoft
  • cpe:2.3:a:microsoft:.net_education_bundle_sdk_install_tool:*:*:*:*:*:visual_studio_code:*:* Versions 0.6.0 to before 0.7.0 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:.net_install_tool_for_extension_authors:*:*:*:*:*:visual_studio_code:*:* Versions 1.1.0 to before 1.2.0 Vulnerable ·Microsoft

Remediation

  • Fix · CNA .NET Education Bundle SDK Install Tool (Microsoft) Fixed in 1.2.0
  • Fix · CNA .NET Install Tool for Extension Authors (Microsoft) Fixed in 0.7.0

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Elevation of Privilege
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely
ProductStatusPlan or fix
.NET Education Bundle SDK Install ToolFixed 1.2.0 · Security Update
.NET Install Tool for Extension AuthorsFixed 0.7.0 · Security Update

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-34477

References

Patch 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences